Types of Organic Molecules

Question 1

starch

Answer 1

carb; energy storage in plants

Question 2

glycogen

Answer 2

carb; energy storage in liver and muscle cells of animals

Question 3

cellulose

Answer 3

carb; plant cell walls

Question 4

chitin

Answer 4

carb; fungal cell walls + external skeleton of insects and crustaceans

Question 5

waxes (cutin)

Answer 5

lipids; water repellent

glycerol + 1 fatty acid

Question 6

phospholipids

Answer 6

lipid; chemical composition of cell membrane

glycerol + 2 fatty acids

Question 7

testosterone and estrogen

Answer 7

lipids(steroids); hormones of males and females

Question 8

cholesterol

Answer 8

lipids(steroid); rigidity to cell membranes + produces other kinds of steroids

Question 9

antibodies

Answer 9

proteins; fight diseases

Question 10

enzymes

Answer 10

proteins; control rate of chemical reactions

Question 11

insulin

Answer 11

protein; regulates blood sugar

Question 12

glucose

Answer 12

carb; quick source of energy

Question 13

hemoglobin

Answer 13

protein; transports oxygen through red blood cells

Question 14

fat or oil

Answer 14

lipids; long-term energy

Question 15

DNA (specific function)

Answer 15

nucleic acid; stores genetic information